Unvaccinated Illinois resident's visit to the St. Louis Aquarium last week caused a measles exposure scare. Health officials are struggling to track potential exposures due to inconsistent information from the infected individual. One school group was present during the exposure window, and a restaurant visit is still under investigation. Anyone experiencing measles symptoms—fever, cough, rash—should contact their doctor immediately, particularly those immunocompromised or unvaccinated.

Prepared by Olivia Bennett and reviewed by editorial team.